
Communism and Catholicism have had a complex and often fraught relationship. While some have argued that the two belief systems are incompatible, others have found common ground between them. The Catholic Church has historically opposed communism, with Pope Pius XII declaring Catholics who professed atheistic communist doctrine to be excommunicated as apostates from the Christian faith in the 1949 Decree Against Communism. This decree was issued in response to the growing influence of communism in Eastern Bloc countries and the perceived threat of schism within the Church. However, the idea of Catholic communism, or cattocomunismo, emerged in Italy during the early 20th century, combining Catholic social teaching with communist or Bolshevik ideals. Proponents of this ideology, known as Catholic communists, believe that communism is the most effective means of realizing Catholic social teaching. They generally accept historical materialism but reject the dialectical materialism and state atheism of Marxism-Leninism. While Catholic communists were a significant part of the Italian resistance movement against Nazism and Fascism during World War II, the broader historical implementation of communist regimes has resulted in economic collapse, poverty, and religious persecution, including the suppression of Catholicism.
| Characteristics | Values |
|---|---|
| Atheistic | Catholics who profess atheistic communist doctrine are considered excommunicated as apostates from the Christian faith |
| Anti-clerical | The Catholic Church has historically condemned anti-clerical forms of socialism |
| Anti-religion | Communism is seen as a threat to the freedom and existence of the Church |
| Social reform | The Catholic Church's religious communities have always practised common ownership of goods, but their primary object is not social reform or a more just distribution of goods |
| Economic reform | Communism calls for the abolishment of private property and complete collective ownership of all resources |
| Social justice | Catholic communists believe that the principles of social justice, charity, and communal living espoused in Catholic social teaching can only be fully achieved through a communist social and economic system |
| Historical materialism | Catholic communists generally accept historical materialism, but reject the dialectical materialism and state atheism of Marxism–Leninism |
| Social doctrine | The Catholic Church believes that its social doctrine is superior to communist doctrines |
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What You'll Learn
- Catholic communism, also known as cattocomunismo, is a far-left political and theological movement that combines Catholic social teaching with communism
- The Catholic Church has historically condemned communism, with Pope Pius XII declaring Catholics who followed atheistic communist doctrine to be excommunicated
- Catholicism and communism have been viewed as compatible ideologies, with some believing that Catholicism can complement communism by offering a theoretical blueprint for the future
- During World War II, Catholic communists were a significant component of the Italian resistance movement against Nazism and Fascism
- Communism is an ideology that makes claims about philosophy, politics, culture, and economics, offering a comprehensive worldview that presents itself as the answer to every human problem

Catholic communism, also known as cattocomunismo, is a far-left political and theological movement that combines Catholic social teaching with communism
Catholic communism, also known as cattocomunismo, is a far-left political and theological movement that combines Catholic social teachings with communist principles. It first emerged in Italy in the early 20th century, with its roots tracing back to the late 19th century, and gained prominence in the 1930s among members of the Catholic Action association. Adherents of Catholic communism are known as Catholic communists, and they believe that communism provides the most effective means of realising Catholic social teachings.
While they generally accept historical materialism, Catholic communists typically reject the dialectical materialism and state atheism inherent in Marxism-Leninism. Instead, they emphasise the compatibility of Catholicism and communism, highlighting how Christianity can extend communist ideals beyond earthly life. This perspective is reflected in the statement by Miglioli, who asserted that "Christianity brought communism beyond the limits of earthly life." The writer Arthur Koestler, prior to his disenchantment with communism, similarly observed that Catholicism and communism presented "theoretical blueprints of the future", with Catholicism enhancing communism by blending "the spiritual realm with the promise of social revolution."
Catholic communists advocate for social justice, charity, and communal living, which are core principles in Catholic social teachings. They view communism as a means to fully realise these ideals. Additionally, Catholic communists played a significant role in Italy's resistance movement against Nazism and Fascism during World War II. The Party of the Christian Left (Partito della Sinistra Cristiana) included notable proponents of this ideology, such as Franco Rodano, Felice Balbo, and Adriano Ossicini. The Movement of Catholic Communists actively operated from 1937 to 1945, and the term cattocomunismo remained prevalent in Italian political and intellectual discourse in the post-war period.
It is worth noting that the Catholic Church has had a complex relationship with communism. While the Church has acknowledged the social doctrine of the Church and its positive contributions to society, it has also issued decrees against communism. In 1949, the Catholic Church, under Pope Pius XII, declared Catholics professing atheistic communist doctrine to be excommunicated as apostates. This decree was prompted by the rise of pro-communist Catholic associations in the socialist Eastern Bloc and the perceived threat of schism. However, the Vatican later reached compromises with socialist states, and the decree is no longer valid.
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The Catholic Church has historically condemned communism, with Pope Pius XII declaring Catholics who followed atheistic communist doctrine to be excommunicated
Communism, as outlined in the Communist Manifesto by Karl Marx and Friedrich Engels in 1848, promotes a classless society, with collective ownership of resources and equitable economic conditions. While some have argued that this is similar to the common ownership practised by some religious orders, the Catholic Church has viewed communism as a dangerous ideology that threatens longstanding social orders and the very existence of the Church.
The Catholic Church's condemnation of communism can be traced back to Pope Pius IX in 1846, who referred to communism as an "infamous doctrine... contrary to the natural law itself". Later, Pope Leo XIII described communism as a "fatal plague which insinuates itself into the very marrow of human society only to bring about its ruin". These statements set the tone for the Catholic Church's stance on communism, which was further solidified by Pope Pius XI in 1931. In his encyclical, he objected to communism's professed opposition to religion and its threat to the Church's freedom.
Pope Pius XII's decree specifically targeted Catholics who had abandoned their faith to follow atheistic communist doctrine. It did not prohibit membership in communist parties but aimed to prevent a schism within the Church by excommunicating those who collaborated with communists. This decree was not without its critics, and many priests in communist-governed countries chose to ignore it, continuing to offer the Church's sacraments to active communists.
The decree marked a significant moment in the institutional conflict between Catholicism and communism, with the Catholic Church taking a strong stance against the spread of communism and its perceived anti-religious nature.
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Catholicism and communism have been viewed as compatible ideologies, with some believing that Catholicism can complement communism by offering a theoretical blueprint for the future
Catholicism and communism have had a long and complicated relationship. While some view them as incompatible ideologies, others believe they can be complementary, with Catholicism offering a theoretical blueprint for communism's future.
Catholic communism, or "cattocomunismo" in Italian, is a far-left political and theological movement that combines Catholic social teachings with communist or Bolshevik ideals. Adherents are known as Catholic communists, and the ideology has also been called Catholic Bolshevism, Christian Bolshevism, Left-Catholicism, and White Bolshevism. This movement emerged in Italy in the early 20th century, particularly among members of the Catholic Action association in the 1930s. Catholic communists view communism as the best way to realise Catholic social teachings. They generally accept historical materialism but reject the dialectical materialism and state atheism of Marxism-Leninism.
Catholic communists argue that the principles of social justice, charity, and communal living promoted in Catholic social teachings can only be fully realised through a communist social and economic system. This belief in communal living and common ownership is not new to Catholicism. Many religious communities within the Catholic Church have practised common ownership of goods, both productive and non-productive, with their primary goal being the spiritual improvement of individuals and the fulfilment of their charitable mission.
The relationship between Catholicism and communism became more complex during the Cold War. The Catholic Church, particularly in the United States, often viewed communism with profound hostility. This was partly due to the persecution of religious people in various communist states and movements. However, some Catholics, like Dorothy Day, offered sympathetic criticisms of communism, acknowledging the goodness that drives many communists and their aspiration for a world free from economic exploitation.
Additionally, during World War II, Catholic communists played a significant role in the Italian resistance movement against Nazism and Fascism. This continued a tradition of dialogue between Catholics and communists that began in Italy and other Catholic European nations in the late 19th century. Despite these interactions, the Vatican issued a Decree Against Communism in 1949, excommunicating Catholics who professed atheistic communist doctrine as apostates from the Christian faith. This decree was later abrogated and is no longer valid.
In conclusion, while Catholicism and communism have had a complex and often contentious relationship, some believe that they can be compatible. Catholic communists argue that Catholicism can provide a theoretical framework for communism, ensuring that social justice and communal living are at the core of communist ideals.
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During World War II, Catholic communists were a significant component of the Italian resistance movement against Nazism and Fascism
During World War II, 97% of Italy's population identified as Roman Catholic. While some joined Mussolini's Fascist Party and fought for the Italian Army, others resisted and fought against Fascism and Nazism. The Italian Resistance movement was made up of diverse political backgrounds, including communists, socialists, liberals, Catholics, and those without prior political affiliations.
Catholics played a significant role in the Italian Resistance, with approximately 20,000 Christian Democrats among the partisans. They fought against the German occupation, Italian Fascists, and the ruling elites. Catholic clergy, such as Father Aldo Brunacci and Monsignor Giuseppe Nicolini, risked their lives to protect Jews from persecution. They hid Jews in convents and monasteries, falsified papers, and created new identities, saving hundreds of lives.
Catholic communists also existed and were a part of the resistance. However, tensions between Catholics and Communists within the movement led to separate formations, such as the Fiamme Verdi. The Vatican issued a decree against communism, fearing schism due to the influence of communist ideologies on Catholic associations in socialist countries. Nonetheless, some Catholics, like Dorothy Day, held sympathetic views of communism, especially when witnessing the selflessness of American communists supporting striking workers in the 1930s.
The Italian Resistance's commitment to radical political change included a purge of officials and a transition to a republic. Partisans of different ideologies, including Catholics and Communists, worked together in local Committees of National Liberation (CLNs) to coordinate strategies, administer liberated areas, and appoint new officials. Despite their differences, they united in their opposition to Fascism and Nazism during World War II, making them a significant component of the Italian resistance movement.
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Communism is an ideology that makes claims about philosophy, politics, culture, and economics, offering a comprehensive worldview that presents itself as the answer to every human problem
At its core, communism advocates for a collective ownership model, aiming for equality and the abolition of private property. This ideology has ancient roots, with some characterizing Plato's "Republic" as communistic. Over the centuries, various religious and philosophical movements have embraced communal living, common ownership, and equality, which are tenets of communism. However, the modern form of communism took shape with the publication of the Communist Manifesto by Karl Marx and Friedrich Engels in 1848. This manifesto highlighted historical class struggles and envisioned a world where the "have-nots" achieve equitable economic conditions through conflict, termed "dialectical movement."
Communism's comprehensive nature extends beyond economics, encompassing a broader worldview. It offers a unified vision of society, claiming applicability across different places and cultures. This aspect has led to significant friction with religious institutions, particularly the Catholic Church. While some Catholic communists argue that their faith and communism are compatible, with communism fulfilling Catholic social teaching, the Catholic Church has historically issued decrees and encyclicals condemning communism as atheistic and a threat to religious freedom.
The implementation of communist ideologies in various countries has resulted in mixed outcomes. Critics point to economic collapse, poverty, bureaucracy, and repressive dictatorships as consequences of communism. Additionally, the suppression of Catholicism and other religions under communist regimes has further fueled opposition to communist doctrines within the Catholic Church.
Despite these criticisms and conflicts, some Catholic communists persist in their belief that Catholicism and communism can coexist. They advocate for social justice, charity, and communal living, interpreting communism as a means to realize the principles of their faith more fully. However, they often reject aspects of Marxism-Leninism, such as dialectical materialism and state atheism. The dialogue and tension between Catholicism and communism demonstrate the complex and multifaceted nature of both ideologies, highlighting their impact on society, politics, and culture worldwide.
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Frequently asked questions
Communism is a complex ideology that is universal in scope. It makes claims about philosophy, politics, culture, and economics and offers a comprehensive vision that unifies these aspects of human society in a single worldview. Communists argue its applicability to every place and culture.
Catholic communism, known in Italian as cattocomunismo, is a far-left political and theological movement that combines Catholic social teaching with communism/bolshevism. Its adherents are known as Catholic communists, and the ideology has also been referred to by various other names, including Catholic Bolshevism, Christian Bolshevism, Left-Catholicism, and White Bolshevism.
The Catholic Church has historically opposed communism, especially in its atheistic and anti-religious forms. In 1949, the Church issued the Decree Against Communism, which declared Catholics who professed atheistic communist doctrine to be excommunicated as apostates from the Christian faith.
While the Catholic Church has officially condemned communism and declared Catholics who adopt atheistic communist doctrine to be excommunicated, there have been Catholic communists who view communism as a means of realizing Catholic social teaching. During World War II, Catholic communists were a significant part of the Italian resistance movement against Nazism and Fascism.










































